wip: frame_allocator working pretty good (?)

core: remove physical allocatory

src/memory/frame.c

@@ -8,28 +8,36 @@
 #include "string.h"
 #include "utils.h"
 
-void *alloc_frames(size_t size)
+void *alloc_frame(void)
 {
-	const uint32_t nb_frames = CEIL(size, PAGE_SIZE);
-	for (uint32_t i = 0; i < mmap_length; i++) {
-		multiboot_memory_map_t *mmmt =
-		    (multiboot_memory_map_t *)mmap_addr + i;
-		if (mmmt->type == MULTIBOOT_MEMORY_AVAILABLE) {
-			kprintf("type: %d, addr: %p, len: %u, size: %u, \n",
-			        mmmt->type, mmmt->addr, mmmt->len, mmmt->size);
-		}
-		PRINT_PTR(mmmt);
+	struct frame_zone *it = head;
+	while (it && !it->remaining_frames)
+		it = it->next;
+	if (it->remaining_frames == 0) {
+		kprintf(KERN_CRIT "No memory zone available (ratio)\n");
+		return NULL;
 	}
-	PRINT_PTR(head);
-	PRINT_PTR(head->addr);
-	PRINT_PTR(head->frame_table);
-	PRINT_UINT(head->size);
-	PRINT_UINT(head->remaining_frames);
-	PRINT_PTR(head->next);
-	return NULL;
+
+	size_t i = it->first_free_frame;
+	for (; GET_FRAME(it->frame_table, i); i++)
+		;
+	it->first_free_frame++;
+	it->remaining_frames--;
+	SET_FRAME(it->frame_table, i, 1);
+	return it->addr + i * PAGE_SIZE;
 }
 
-int free_frames(void *frame_ptr, size_t size)
+int free_frame(void *frame_ptr)
 {
+	struct frame_zone *it = head;
+	while (it && (frame_ptr < it->addr || frame_ptr >= it->addr + it->len))
+		it = it->next;
+
+	uint32_t index =
+	    (frame_ptr + (it->len - it->size) - it->addr) / PAGE_SIZE;
+	SET_FRAME(it->frame_table, index, 0);
+	if (it->first_free_frame > index)
+		it->first_free_frame = index;
+	it->remaining_frames++;
 	return 0;
 }